莫斯科国立大学生物系的冷冻电镜技术

Q3 Agricultural and Biological Sciences

Moscow University Biological Sciences Bulletin Pub Date : 2024-03-11 DOI:10.3103/s0096392523700232

A. V. Moiseenko, A. M. Egorov, K. V. Shaitan, O. S. Sokolova

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引用次数: 0

摘要

摘要本文报告了将 JEOL JEM-2100 分析透射电子显微镜成功升级为低分辨率冷冻电子显微镜的实例，该仪器可用于优化样品制备和评估制备质量。仪器升级后，蛋白质分子重构可达到亚纳米分辨率（8 Å 以内）。讨论了石墨烯和无定形碳基底在防止冷冻样品中蛋白质颗粒优先取向效应方面的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Cryo-Electron Microscopy at the Biological Faculty of Moscow State University

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Cryo-Electron Microscopy at the Biological Faculty of Moscow State University

Abstract

The paper reports an example of a successful upgrade of the JEOL JEM-2100 analytical transmission electron microscope to a low-resolution cryo-electron microscope, which can be used to optimize sample preparation and to assess preparation quality. As a result of the instrument upgrade, it is possible to obtain subnanometer resolution of protein molecule reconstructions (within 8 Å). The role of graphene and amorphous carbon substrates in preventing the effect of preferential orientation of protein particles in a frozen sample is discussed.

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来源期刊

Moscow University Biological Sciences Bulletin Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Moscow University Biological Sciences Bulletin is forum for research in all important areas of modern biology. It publishes original work on qualitative, analytical and experimental aspects of research. The scope of articles to be considered includes plant biology, zoology, ecology, evolutionary biology, biophysics, genetics, genomics, proteomics, molecular biology, cell biology, biochemistry, endocrinology, immunology, physiology, pharmacology, neuroscience, gerontology, developmental biology, bioinformatics, bioengineering, virology, and microbiology.